1 x 1. Introduction (3.00 avg depth)
11 x 2. Closed Variation (14.27 avg depth)
14 x 3. Open System (12.43 avg depth)
6 x 4. Morozevich Variation (11.83 avg depth)
7 x 5. Rubinstein Variation (11.71 avg depth)
3 x 6. Guimard Defense (13.67 avg depth)
4 x 7. Modern System (11.00 avg depth)
